Aren't there pills or some kind of procedure that can speed up a person's metabilism?
There are pills for that. For example ECA (containing ephedrine, caffeine and aspirin). But it's better to just use
your body to burn excess energy (calories).
A natural way to increase the basic metabolic rate is to gain more muscles. People with a large total muscular mass burn more energy (more calories) even when they are at rest.
This is interesting physiology, I have it on my exam in 2 weeks.
Pole in Poland who is overweight and eats too much. I imagine it is something that is becoming more common.
Yes it's becoming more common. More fast food and more driving instead of walking. Like USA and WE.